塔塔工业集团，移动电话公司Bharti Airtel，以及一批医药生产商已在非洲大陆投入巨资。
Tata, an industrial conglomerate, Bharti Airtel, a mobile-phone company, and a batch of generic-drug producers have invested heavily on the continent.
在化工、炼油、医药和另外一些工业部门，塔是一种重要的单元操作设备。
In the chemical industry, oil refines, medicine and other some industry sectors, the tower is one kind of important unit operation equipment.
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